除独立主格结构外,现在分词的逻辑主语就是句子的主语。当现在分词的逻辑主语就是句子的主语时,现在分词可以根据需要添加when, while, after, before等连词。如:When eating, don't talk.Once losing the chance, you can't easily find it.As long as going into the reading room, you keep quiet. 也有的语法书将它看作是省略了主语和be动词的时间状语从句。这些语法书规定:当时间状语从句或条件状语从句的主语与主句的主语相同,或从句的主语是it,且从句有be动词时,可以省略从句的主语和be动词。我觉得第... |